Registering bite tray



- Dec. 13, 1927.

' 1,652,910 J. E. PSAYLA REGISTERING BITE TRAY Filed Jan. 22, 1926wwenkoz $6 56 5. ja /a Patented Dec. 13, 1927.

1 issaaia JOSEPH E. PSAYLA, 'o'r'nnw, ORLEANS, LOUISIANA.

RESIST-BEING BITE TRAY;

Application filed. January 22, 1926. Serial N0.:83,100.

This invention relates to registering bite trays and particularlyjtoatray of the class described, constructed forthe ,purpose of recordingthe mandibular, and ,n'iagrilla-ry' res lationship of the occlusal facesof'the teeth, and provided withadjunctiremeans for=cnabling registrationof the medianlinc, cor 11ers of the-mouth, normallip-line,lip-highline,-lip-low line, and other data governing m thedetermination-of the length and width ofthe artificialteeth, andexpression-intheir mounting. V v

The principal objects of the invention are m shapes of arch, for-takingtheimpression-of the mandibular jand maxillary bite, either separatelyor correlative ly andito'provide a chart carried by said tray andadjustably mounted thereuponso as to be accommodated to thechangesofshape andsize of the articulated arch members of the tray.

@ther objects .of the invention willappear as the following descriptionofza preferred em bodimentof theinvention proceeds.

In-the clrawings: @Figure lis a plan view of-iny improved registeringbite tray. I

Figure '2 is a sectionxtaken' alongttheline 2-92 ofFigure l.

33-of Figure 1.

lfigure 4 is a, perspective view of the tray showing several elementsthereof in disassembledrelation.

Figure 5 is a view similar to sFi-gure 4 wherein the parts of the trayare shown assembled. v v

'Referring now in detail to the several figures, the numerals 1 and 2represent in general the side arch members, the same being similar inshape, each consisting of a flat septum 3, preferably perforated asindicated at 4, and bordered both on their inner and outer edges byflanges 5 and 6. As shown in the drawing, the external flange 5 is thehigher, but this is a mere matter-of choice or degree which is notmaterial to the invention. I

The arch side members are designed to be adjusted laterally of themedian line of the tray, and to permit this adjustment they are formedat their anterior ends with laten ally extending slots 7 and 8 andconnected by a link 9 which is preferably formed with is provided withpins 12 or other suitable fas- -Fi-gure v3 I a section taken along the 7line upper and lower arcuate plates,,one of which tening means and theother aperturedias shown at 10 and, 11; (F 4) to .receivevsaid pins, thelatter extending through the slots .of the arch members and carrying theadbut they ,may, at the $211116 tllHQbQTQtELtGLl with respectxto one orboth of the-pins .12 so as to further modify-the shape of the arch,

thus adapting a single tray; to practically toprovide atray adjustablefOI'tlllSlZGS and all Leases and conditions encountered ;in :thehttingof dentures. i The tray 1s,provided.on,the antrior'portions ofthef'external flanges 5 witha chart tween the side larch members and 14of celluloid or, other .suitabl e material wh ch overlies the @OllltiOfsep aration be 7 v conforming to the shape of thclarch, regardless ofthe relative positions of adjustment of the-side archmembers. In ordertopermitthe'chart i to; accommodate: itself to the various shapes whichthetraymay assume, it isprovided adjacent its ends .with-slots15 and 16through which project means, such as threaded pins 17, secured to saidarch members,lnuts.l 8 being; provided whichmay be tightened forholding, the chart, in place.

In taking the bite with. (my, improved bite tray, the nutsl3 are first,l'oosenedandthe side .arc'h .members are adjusted to 1 suit theindividual case. 'lVhen tl11s,.has;been-,done thenuts are t ghtened-randthe mpressionor the mandibular 1- maz' i'lla'ry surfaces of. the septum3, and depressed into the perforations 4 thus firmly-holding thebite-wax in place. The tray is then insertedinto the patients mouth andthe bite taken in the usual manner. In using the chart in coIinectionwith the bite tray, the nuts 18 should .be loosened at the same time asthe nuts 13 so as topermit the chart to accommodate itself to the changeof shape assumed by the bite tray. l/Vhen the nuts 18 are tightened thechart retains the shape of the tray, as

hereinbefore stated. While the impression bite-wax. isdistributed' oneither or vbOtl'i. of

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- loid the data registered thereupon may be erased at the time ofsterilization, and the chart may be used repeatedly, but the inventionalso contemplates the use of a material for the chart which, whilesufficiently water proof to last efliciently through a single operation, is of such low cost that it may be discarded and a new chartused for each operation.

While I have described what I consider to be a preferred and practicalembodiment of my invention it is to be understood that the disclosedstructure is to be considered illustrative only and not limitative incharacter.

Having described my invention what I claim as new and desire to secureby Letters Patent, is z 1. A bite tray, comprising a pair ofarcuate'members each'having a substantially flat septum, and a linkpivotally connected adjacent each of its ends to one of said ar 'cuatemembers adjacent an end of the latter on axes at right-angles to thelengths of the septums of said members.

V 2. A bite. tray including articulated members having an end of each injuxtaposition to form an arch each member comprising a septum, andflanges projecting on both sides thereof forming upper and lower waxreceiving channels, and an intermediate link to which said members arepivotally connected at separate points to swing on axes substantially atright angles 'to their septums.

3. A bite tray including articulated members having an end of each injuxtaposition to form an arch, each comprising a septum and flangesprojecting on both sides thereof forming upper and lower wax receivingchannels, said septum being provided with 'open'perforations, and anintermediate link to which said members are pivotally connected atseparate points to swing independently of one another on axes at rightangles to their septums.

a. A bite tray including side members having an end of each injuxtaposition to form an arch and each including a septum, and flangesprojecting on both sides of said septum forming upper and lower waxreceiving channels, and an intermediate link to which said members areconnected by pin and slot connections at separate points.

5. A bite tray including a member comprising a septum, having anexternal flange on the anterior side thereof, and a chart carried bysaid flange.

6. A bite tray including articulated members, each member comprising aseptum having external flanges, means for adjustably connecting saidmembers relatively, laterally and pivotally and a chart carried by saidmembers, conforming to said flanges and overlying the line of separationbetween said members.

7. A bite tray comprising side .members having arched flanges, saidmembers being adjustably connected so that the degree of curvature ofthe arch formed by said members may be varied, a chart carried by saidflanges and overlying their line of division, and means securing saidchart to said members, said means permitting the chart to accommodateitself tochanges in curvature of said arch.

8. A bite tray comprising side members having arched flanges, said sidemembers being adjustably connected to permit varia tion of the degree ofcurvature of the arch formed, by said members, a chart carried by saidflanges and overlying their line of division, and pin and slotconnections between said chart and said members whereby the chart mayaccommodateitself to changes in curvature of said arch.

In testimony whereof I have hereunto set my hand.

